The function, structure, and origins of the ER membrane protein complex

RS Hegde - Annual Review of Biochemistry, 2022 - annualreviews.org
The endoplasmic reticulum (ER) is the site of membrane protein insertion, folding, and
assembly in eukaryotes. Over the past few years, a combination of genetic and biochemical …

The biogenesis of multipass membrane proteins

L Smalinskaitė, RS Hegde - Cold Spring Harbor …, 2023 - cshperspectives.cshlp.org
Multipass membrane proteins contain two or more α-helical transmembrane domains
(TMDs) that span the lipid bilayer. They are inserted cotranslationally into the prokaryotic …

EMC is required to initiate accurate membrane protein topogenesis

PJ Chitwood, S Juszkiewicz, A Guna, S Shao… - Cell, 2018 - cell.com
Mammals encode∼ 5,000 integral membrane proteins that need to be inserted in a defined
topology at the endoplasmic reticulum (ER) membrane by mechanisms that are incompletely …

Structural analysis of the dynamic ribosome-translocon complex

AJO Lewis, F Zhong, RJ Keenan, RS Hegde - Elife, 2024 - elifesciences.org
The protein translocon at the endoplasmic reticulum comprises the Sec61 translocation
channel and numerous accessory factors that collectively facilitate the biogenesis of …

An alternative pathway for membrane protein biogenesis at the endoplasmic reticulum

S O'keefe, G Zong, KB Duah, LE Andrews… - Communications …, 2021 - nature.com
The heterotrimeric Sec61 complex is a major site for the biogenesis of transmembrane
proteins (TMPs), accepting nascent TMP precursors that are targeted to the endoplasmic …

Sec61 blockade by mycolactone: A central mechanism in Buruli ulcer disease

C Demangel, S High - Biology of the Cell, 2018 - Wiley Online Library
Infection with Mycobacterium ulcerans results in a necrotising skin disease known as a
Buruli ulcer, the pathology of which is directly linked to the bacterial production of the toxin …

Ipomoeassin F binds Sec61α to inhibit protein translocation

G Zong, Z Hu, S O'keefe, D Tranter… - Journal of the …, 2019 - ACS Publications
Ipomoeassin F is a potent natural cytotoxin that inhibits growth of many tumor cell lines with
single-digit nanomolar potency. However, its biological and pharmacological properties …

The role of EMC during membrane protein biogenesis

PJ Chitwood, RS Hegde - Trends in Cell Biology, 2019 - cell.com
Ten years ago, high-throughput genetic interaction analyses revealed an abundant and
widely conserved protein complex residing in the endoplasmic reticulum (ER) membrane …

Complexity and specificity of Sec61-channelopathies: human diseases affecting gating of the Sec61 complex

M Sicking, S Lang, F Bochen, A Roos, JPH Drenth… - Cells, 2021 - mdpi.com
The rough endoplasmic reticulum (ER) of nucleated human cells has crucial functions in
protein biogenesis, calcium (Ca2+) homeostasis, and signal transduction. Among the …

Membrane protein biogenesis at the ER: the highways and byways

S O'Keefe, MR Pool, S High - The FEBS Journal, 2022 - Wiley Online Library
The Sec61 complex is the major protein translocation channel of the endoplasmic reticulum
(ER), where it plays a central role in the biogenesis of membrane and secretory proteins …